/* reset */
* {
  margin: 0;
  padding: 0;
}
button {
  border: 0;
  background: none;
}

/* style */
body {
  background: #e9dfff;
}
.panel {
  width: 80%;
  height: 100vh;
  overflow: hidden;
  margin: 0 auto;
  background-color: white;
  box-shadow: 5px 0 5px 5px rgba(200, 200, 200, 0.5),
    -5px 0 20px 10px rgba(200, 200, 200, 0.8);
}
.container {
  overflow: hidden;
  width: 60%;
  height: auto;
  margin: 0 auto;
}
.container .card {
  width: calc(100% - 50px);
  height: auto;
  border: 1px solid #ccc;
  margin: 48px auto;
  position: relative;
  padding: 24px;
}
.container .card > p.title {
  color: #333;
  font-weight: bold;
  padding: 3px 6px;
  position: absolute;
  top: -16px;
  background-color: #eee;
  box-shadow: 2px 2px 6px 3px rgba(0, 0, 0, 0.2);
}
.text-bold {
  font-weight: bold;
}
.text-italic {
  font-style: italic;
}
.arial-font {
  font-family: arial;
}
.nroman-font {
  font-family: new roman;
}
.underlined {
  text-decoration: underline;
}
.through {
  text-decoration: line-through;
}
.orange {
  color: orange;
  border-color: orange;
}
.orange.fill {
  background-color: orange;
}
.square {
  width: 64px;
  height: 64px;
  margin: 12px 0;
}
.purple {
  color: purple;
  border-color: purple;
}
.purple.fill {
  background-color: purple;
}
.circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 12px 0;
}
button {
  width: 180px;
  height: 38px;
  margin: 6px 0;
  background-color: purple;
  color: white;
  cursor: pointer;
  transition: opacity 0.3s;
}
button:hover,
button.hovered {
  opacity: 0.7;
  transition: opacity 0.3s;
}
button:active,
button.actived {
  opacity: 0.3;
}
